On November 23rd, the third lecture of the public science series on big data, titled "From Small to Big: Data, Models, and Decision Making in Everyday Life," was held at Longcheng Senior High School (Ping'anli Campus), with 450 first-year students and teachers participating. The event was jointly organized by the Shenzhen Research Institute of Big Data (SRIBD) and the Longcheng Street New Era Civilization Practice Institute. The guest speaker for this session was Dr. Peng Yangyang of SRIBD.

Dr. Peng began by introducing the topic through examples of "clothing, food, housing, and transportation," using small, everyday phenomena in students' lives to explain bigger concepts. By analyzing complete model mechanisms, he helped students understand the thought processes behind decision-making, while also exploring the ways "data transforms life" through examples such as "live-stream e-commerce," "multimodal transport systems," and "supply chain business scenarios."

Dr. Peng then introduced several intriguing big data paradoxes—the "transparency paradox," "identity paradox," and "power paradox"—to prompt students to think deeply about the security issues related to big data. He also shared some of the latest internet learning tools to help students better grasp knowledge, and the lecture was met with enthusiastic applause. During the Q&A session, students actively engaged with Dr. Peng, discussing questions like "Do humans still need to study in the age of big data?" and "Are there things that big data cannot understand?" Dr. Peng answered each question and praised the students for their bold and thought-provoking ideas.